/* Copyright (C) 2004 - 2008  Versant Inc.  http://www.db4o.com

This file is part of the sharpen open source java to c# translator.

sharpen is free software; you can redistribute it and/or modify it under
the terms of version 2 of the GNU General Public License as published
by the Free Software Foundation and as clarified by db4objects' GPL 
interpretation policy, available at
http://www.db4o.com/about/company/legalpolicies/gplinterpretation/
Alternatively you can write to db4objects, Inc., 1900 S Norfolk Street,
Suite 350, San Mateo, CA 94403, USA.

sharpen is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. */

package sharpen.core;

import java.util.HashMap;
import java.util.Map;

public class NamingStrategy {

    public static final NamingStrategy DEFAULT = new NamingStrategy();

    static Map<String, String> _identifierMappings = new HashMap<String, String>();

    static {
        keywords("as", "base", "bool", "checked", "decimal",
                "event", "explicit", "extern", "false", "fixed",
                "foreach", "implicit", "in", "internal", "is",
                "namespace", "null", "object", "operator", "out",
                "override", "params", "readonly", "ref", "sbyte",
                "sealed", "sizeof", "stackalloc", "string", "struct",
                "true", "typeof", "uint", "ulong", "unchecked",
                "unsafe", "ushort", "using", "virtual");
        mapIdentifier("lock", "Lock");
        mapIdentifier("delegate", "delegate_");
    }

    private static void keywords(String... values) {
        for (String value : values)
            keyword(value);
    }

    private static void keyword(String value) {
        mapIdentifier(value, "@" + value);
    }

    private static void mapIdentifier(String from, String to) {
        _identifierMappings.put(from, to);
    }

    public String identifier(String name) {
        String mapped = _identifierMappings.get(name);
        return mapped != null ? mapped : name;
    }

    public String methodName(String name) {
        return namespacePart(name);
    }

    public String namespace(String name) {
        StringBuilder builder = new StringBuilder();
        for (String part : name.split("\\.")) {
            if (builder.length() > 0) builder.append('.');
            builder.append(namespacePart(part));
        }
        return builder.toString();
    }

    protected String namespacePart(String part) {
        return identifier(part);
    }
}
